3am must be lonely, husband caught on phone with another girl

So yep my husband has been working an odd shift where he gets home at 1am so iv been sleeping in the office on tbe days he gets home at 1 am ( Which i am a terrible person for apparently wanting a full night of sleep, instead of him running in and out of the room. I still sleep in our room on his days off where hes not waking me)

Anywho, for some reason i woke up at 1am and could not go back to sleep. Around 3am something told me to go in our room. The room door was. Closed and my husband was on the phone and i could hear a woman talking. The look on his face when i came in. He said oh its my friend so and so...which i have never even heard of before. And he wasnt talking to her anymore,just mumbling and then he got off the phone, ( only on the phone for maybe a min after i came in) was sitting in bed next to him. I said um...3am and you're talking to some girl on the phone? He said its just a friend. I got out of bed ,told him go ahead and call her back and just went back to the office,he followed me in there and was all defensive. ( He lied to me about some shit a few months ago and we have been trying,or i have been working on trust)

I said wtf would you think if I was on the phone with some guy you have never heard of at 3am? He said im not cheating on you, i didnt even say that. So back to square fucking one.

Oh and he messaged her on Facebook about me coming in the room and has been hearting her pictures. He thought sending screenshots of what he told her would make it all better,no...now i am even more pissed the fuck off. And wondering why the fuck i have wasted all this time with him. We have a great son together but i just ... i have no one to turn to, i have no family here,they are 12 hours away. The thought of starting over ,i just dont know. Been married for seven years. Together for well 12. So many red fucking flags,but I don't want to believe it. I don't want believe it.

Telling this girl our troubles, when he wont even talk to me or go to counseling.